Product Applications

VFLO V-Ball Control Valve

Sturdy VFLO Characterised V-notch ball valve is available in sizes 2 through 14 inch ANSI Classes 150, 300 and 600 and in all castable
materials. It is designed to overcome the problems of particle entrained processes. VFLO solves many long standing problems faced by traditional
ball valves, such as:

Inadequate shutoff capabilities.

Piping forces that unevenly load the seat.

Low rangeability due to limited orifice characterisations.

VFLO reduces torque loads that adversely affect sealing and exceeds 300 to 1 rangeability with strong shearing capacity. VFLO achieves
Class IV shutoff with a metal seal and Class VI shutoff with a soft seal. Many important features and options which VFLO uses to fulfill
these and other requirements for ruggedness and high performance are listed below.

VFLO Control Valve Advantages and Features

One-piece body

High performance ensures regardless of flange torque loads.

Seat tightness not altered by piping forces, as in two-piece bodies.

One leak path eliminated.

V-notch ball

Clogging reduced.

“V” shaped orifice exceeds 300 to 1 rangeability.

Shearing action in fibrous fluid mediums is excellent.

Pressure assisted / bidirectional seal

Metal seal provides greater than ANSI Class IV shutoff.

Soft seal achieves ANSI Class VI shutoff.

Self-centering seal:

Seal installation improved and simplified.

Shutoff further improved.

No-shim seal

Servicing and installation problems reduced.

Thick-walled retainer

Valve’s normal service life extended in erosive environments.

Flangeless design standard

Reduced cost

Separable flange option

Bolt length reduced, avoiding bolt stretch and leakage in the event of a fire.

Flange bolting aligns easier.

Integral flange option

Bolt length reduced, avoiding bolt stretch and leakage in the event of a fire.

One-piece, large thread, hex head idler post

Removal from corrosive service is easier.

Additional VFLO Features

Interchangeability

Standard face-to-face dimensions allow for easy field upgrading from other product lines.

Seat replaceable without removing ball and shaft

Maintenance is fast and easy.

Shaft serviceable from outboard end of valve

The need for actuator removal to replace ball and shaft is eliminated.